[PATCH v3 00/29] arm_mpam: Add basic mpam driver

[Fenghua Yu]

On 10/17/25 11:56, James Morse wrote:
> Hello,
> 
> A slew of minor changes, nothing really sticks out.
> Changes are noted on each patch.
> 
> ~
> 
> This is just enough MPAM driver for ACPI. DT got ripped out. If you need DT
> support - please share your DTS so the DT folk know the binding is what is
> needed.

[SNIP]

> This series is based on v6.18-rc4, and can be retrieved from:
> https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git mpam/driver/v3
> 
> The rest of the driver can be found here:
> https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git mpam/snapshot/v6.18-rc1
> 
> What is MPAM? Set your time-machine to 2020:
> https://lore.kernel.org/lkml/20201030161120.227225-1-james.morse@arm.com/

In case you build/test the mpam/snapshot/v6.18-rc1 branch, need to apply 
the following patch. After applying this patch, this series and the rest
of the drivers run successfully on my machine.

diff --git a/drivers/resctrl/mpam_internal.h 
b/drivers/resctrl/mpam_internal.h
index f890d1381af6..132d29e53ae9 100644
--- a/drivers/resctrl/mpam_internal.h
+++ b/drivers/resctrl/mpam_internal.h
@@ -645,6 +645,11 @@ static inline void
mpam_resctrl_teardown_class(struct mpam_class *class) { }
   #define MPAMF_IIDR_VARIANT    GENMASK(19, 16)
   #define MPAMF_IIDR_PRODUCTID    GENMASK(31, 20)

+#define MPAMF_IIDR_IMPLEMENTER_SHIFT    0
+#define MPAMF_IIDR_REVISION_SHIFT    12
+#define MPAMF_IIDR_VARIANT_SHIFT    16
+#define MPAMF_IIDR_PRODUCTID_SHIFT    20
+
   /* MPAMF_AIDR - MPAM architecture ID register */
   #define MPAMF_AIDR_ARCH_MINOR_REV    GENMASK(3, 0)
   #define MPAMF_AIDR_ARCH_MAJOR_REV    GENMASK(7, 4)

[SNIP]

Thanks.

-Fenghua